Role of PM2.5 in the development and progression of COPD and its mechanisms
Abstract Background A multitude of epidemiological studies have shown that ambient fine particulate matter 2.5 (diameter < 2.5um; PM2.5) was associated with increased morbidity and mortality of chronic obstructive pulmonary disease (COPD). However, the underlying associated mechanisms have not ye...
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doaj-77893057777a4747984ec557ec0a83522020-11-25T03:49:31ZengBMCRespiratory Research1465-993X2019-06-0120111310.1186/s12931-019-1081-3Role of PM2.5 in the development and progression of COPD and its mechanismsJunling Zhao0Miao Li1Zhihua Wang2Jinkun Chen3Jianping Zhao4Yongjian Xu5Xiang Wei6Jianmao Wang7Jungang Xie8Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyDepartment of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyDepartment of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyAcadia Junior High SchoolDepartment of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyDepartment of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyDivision of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyDepartment of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyDepartment of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyAbstract Background A multitude of epidemiological studies have shown that ambient fine particulate matter 2.5 (diameter < 2.5um; PM2.5) was associated with increased morbidity and mortality of chronic obstructive pulmonary disease (COPD). However, the underlying associated mechanisms have not yet been elucidated. We conducted this study to investigate the role of PM2.5 in the development of COPD and associated mechanisms. Methods We firstly conducted a cross-sectional study in Chinese han population to observe PM2.5 effects on COPD morbidity. Then, in vitro, we incubated human bronchial epithelial cells to different concentrations of PM2.5 for 24 h. The expression levels of IL-6 and IL-8 were detected by ELISA and the levels of MMPs, TGF-β1, fibronectin and collagen was determined by immunoblotting. In vivo, we subjected C57BL/6 mice to chronic prolonged exposure to PM2.5 for 48 weeks to study the influence of PM2.5 exposure on lung function, pulmonary structure and inflammation. Results We found that the effect of PM2.5 on COPD morbidity was associated with its levels and that PM2.5 and cigarette smoke could have a synergistic impact on COPD development and progression. Both vitro and vivo studies demonstrated that PM2.5 exposure could induce pulmonary inflammation, decrease lung function, and cause emphysematous changes. Furthermore, PM2.5 could markedly aggravated cigarette smoke-induced changes. Conclusions In short, we found that prolonged chronic exposure to PM2.5 resulted in decreased lung function, emphysematous lesions and airway inflammation. Most importantly, long-term PM2.5 exposure exacerbateed cigarette smoke-induced changes in COPD.http://link.springer.com/article/10.1186/s12931-019-1081-3Ambient fine particulate matterChronic obstructive pulmonary diseaseLung functionAirway inflammationEmphysematous lesions |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Junling Zhao Miao Li Zhihua Wang Jinkun Chen Jianping Zhao Yongjian Xu Xiang Wei Jianmao Wang Jungang Xie |
spellingShingle |
Junling Zhao Miao Li Zhihua Wang Jinkun Chen Jianping Zhao Yongjian Xu Xiang Wei Jianmao Wang Jungang Xie Role of PM2.5 in the development and progression of COPD and its mechanisms Respiratory Research Ambient fine particulate matter Chronic obstructive pulmonary disease Lung function Airway inflammation Emphysematous lesions |
author_facet |
Junling Zhao Miao Li Zhihua Wang Jinkun Chen Jianping Zhao Yongjian Xu Xiang Wei Jianmao Wang Jungang Xie |
author_sort |
Junling Zhao |
title |
Role of PM2.5 in the development and progression of COPD and its mechanisms |
title_short |
Role of PM2.5 in the development and progression of COPD and its mechanisms |
title_full |
Role of PM2.5 in the development and progression of COPD and its mechanisms |
title_fullStr |
Role of PM2.5 in the development and progression of COPD and its mechanisms |
title_full_unstemmed |
Role of PM2.5 in the development and progression of COPD and its mechanisms |
title_sort |
role of pm2.5 in the development and progression of copd and its mechanisms |
publisher |
BMC |
series |
Respiratory Research |
issn |
1465-993X |
publishDate |
2019-06-01 |
description |
Abstract Background A multitude of epidemiological studies have shown that ambient fine particulate matter 2.5 (diameter < 2.5um; PM2.5) was associated with increased morbidity and mortality of chronic obstructive pulmonary disease (COPD). However, the underlying associated mechanisms have not yet been elucidated. We conducted this study to investigate the role of PM2.5 in the development of COPD and associated mechanisms. Methods We firstly conducted a cross-sectional study in Chinese han population to observe PM2.5 effects on COPD morbidity. Then, in vitro, we incubated human bronchial epithelial cells to different concentrations of PM2.5 for 24 h. The expression levels of IL-6 and IL-8 were detected by ELISA and the levels of MMPs, TGF-β1, fibronectin and collagen was determined by immunoblotting. In vivo, we subjected C57BL/6 mice to chronic prolonged exposure to PM2.5 for 48 weeks to study the influence of PM2.5 exposure on lung function, pulmonary structure and inflammation. Results We found that the effect of PM2.5 on COPD morbidity was associated with its levels and that PM2.5 and cigarette smoke could have a synergistic impact on COPD development and progression. Both vitro and vivo studies demonstrated that PM2.5 exposure could induce pulmonary inflammation, decrease lung function, and cause emphysematous changes. Furthermore, PM2.5 could markedly aggravated cigarette smoke-induced changes. Conclusions In short, we found that prolonged chronic exposure to PM2.5 resulted in decreased lung function, emphysematous lesions and airway inflammation. Most importantly, long-term PM2.5 exposure exacerbateed cigarette smoke-induced changes in COPD. |
topic |
Ambient fine particulate matter Chronic obstructive pulmonary disease Lung function Airway inflammation Emphysematous lesions |
url |
http://link.springer.com/article/10.1186/s12931-019-1081-3 |
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